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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "common_compiler_test.h"
#include "arch/instruction_set_features.h"
#include "art_field-inl.h"
#include "art_method.h"
#include "base/enums.h"
#include "class_linker.h"
#include "compiled_method.h"
#include "dex/quick_compiler_callbacks.h"
#include "dex/verification_results.h"
#include "driver/compiler_driver.h"
#include "driver/compiler_options.h"
#include "interpreter/interpreter.h"
#include "mirror/class_loader.h"
#include "mirror/class-inl.h"
#include "mirror/dex_cache.h"
#include "mirror/object-inl.h"
#include "oat_quick_method_header.h"
#include "scoped_thread_state_change-inl.h"
#include "thread-inl.h"
#include "utils.h"
namespace art {
CommonCompilerTest::CommonCompilerTest() {}
CommonCompilerTest::~CommonCompilerTest() {}
void CommonCompilerTest::MakeExecutable(ArtMethod* method) {
CHECK(method != nullptr);
const CompiledMethod* compiled_method = nullptr;
if (!method->IsAbstract()) {
mirror::DexCache* dex_cache = method->GetDeclaringClass()->GetDexCache();
const DexFile& dex_file = *dex_cache->GetDexFile();
compiled_method =
compiler_driver_->GetCompiledMethod(MethodReference(&dex_file,
method->GetDexMethodIndex()));
}
if (compiled_method != nullptr) {
ArrayRef<const uint8_t> code = compiled_method->GetQuickCode();
uint32_t code_size = code.size();
CHECK_NE(0u, code_size);
ArrayRef<const uint8_t> vmap_table = compiled_method->GetVmapTable();
uint32_t vmap_table_offset = vmap_table.empty() ? 0u
: sizeof(OatQuickMethodHeader) + vmap_table.size();
OatQuickMethodHeader method_header(vmap_table_offset,
compiled_method->GetFrameSizeInBytes(),
compiled_method->GetCoreSpillMask(),
compiled_method->GetFpSpillMask(),
code_size);
header_code_and_maps_chunks_.push_back(std::vector<uint8_t>());
std::vector<uint8_t>* chunk = &header_code_and_maps_chunks_.back();
const size_t max_padding = GetInstructionSetAlignment(compiled_method->GetInstructionSet());
const size_t size = vmap_table.size() + sizeof(method_header) + code_size;
chunk->reserve(size + max_padding);
chunk->resize(sizeof(method_header));
memcpy(&(*chunk)[0], &method_header, sizeof(method_header));
chunk->insert(chunk->begin(), vmap_table.begin(), vmap_table.end());
chunk->insert(chunk->end(), code.begin(), code.end());
CHECK_EQ(chunk->size(), size);
const void* unaligned_code_ptr = chunk->data() + (size - code_size);
size_t offset = dchecked_integral_cast<size_t>(reinterpret_cast<uintptr_t>(unaligned_code_ptr));
size_t padding = compiled_method->AlignCode(offset) - offset;
// Make sure no resizing takes place.
CHECK_GE(chunk->capacity(), chunk->size() + padding);
chunk->insert(chunk->begin(), padding, 0);
const void* code_ptr = reinterpret_cast<const uint8_t*>(unaligned_code_ptr) + padding;
CHECK_EQ(code_ptr, static_cast<const void*>(chunk->data() + (chunk->size() - code_size)));
MakeExecutable(code_ptr, code.size());
const void* method_code = CompiledMethod::CodePointer(code_ptr,
compiled_method->GetInstructionSet());
LOG(INFO) << "MakeExecutable " << method->PrettyMethod() << " code=" << method_code;
class_linker_->SetEntryPointsToCompiledCode(method, method_code);
} else {
// No code? You must mean to go into the interpreter.
// Or the generic JNI...
class_linker_->SetEntryPointsToInterpreter(method);
}
}
void CommonCompilerTest::MakeExecutable(const void* code_start, size_t code_length) {
CHECK(code_start != nullptr);
CHECK_NE(code_length, 0U);
uintptr_t data = reinterpret_cast<uintptr_t>(code_start);
uintptr_t base = RoundDown(data, kPageSize);
uintptr_t limit = RoundUp(data + code_length, kPageSize);
uintptr_t len = limit - base;
int result = mprotect(reinterpret_cast<void*>(base), len, PROT_READ | PROT_WRITE | PROT_EXEC);
CHECK_EQ(result, 0);
FlushInstructionCache(reinterpret_cast<char*>(base), reinterpret_cast<char*>(base + len));
}
void CommonCompilerTest::MakeExecutable(ObjPtr<mirror::ClassLoader> class_loader,
const char* class_name) {
std::string class_descriptor(DotToDescriptor(class_name));
Thread* self = Thread::Current();
StackHandleScope<1> hs(self);
Handle<mirror::ClassLoader> loader(hs.NewHandle(class_loader));
mirror::Class* klass = class_linker_->FindClass(self, class_descriptor.c_str(), loader);
CHECK(klass != nullptr) << "Class not found " << class_name;
PointerSize pointer_size = class_linker_->GetImagePointerSize();
for (auto& m : klass->GetMethods(pointer_size)) {
MakeExecutable(&m);
}
}
// Get the set of image classes given to the compiler-driver in SetUp. Note: the compiler
// driver assumes ownership of the set, so the test should properly release the set.
std::unordered_set<std::string>* CommonCompilerTest::GetImageClasses() {
// Empty set: by default no classes are retained in the image.
return new std::unordered_set<std::string>();
}
// Get the set of compiled classes given to the compiler-driver in SetUp. Note: the compiler
// driver assumes ownership of the set, so the test should properly release the set.
std::unordered_set<std::string>* CommonCompilerTest::GetCompiledClasses() {
// Null, no selection of compiled-classes.
return nullptr;
}
// Get the set of compiled methods given to the compiler-driver in SetUp. Note: the compiler
// driver assumes ownership of the set, so the test should properly release the set.
std::unordered_set<std::string>* CommonCompilerTest::GetCompiledMethods() {
// Null, no selection of compiled-methods.
return nullptr;
}
// Get ProfileCompilationInfo that should be passed to the driver.
ProfileCompilationInfo* CommonCompilerTest::GetProfileCompilationInfo() {
// Null, profile information will not be taken into account.
return nullptr;
}
void CommonCompilerTest::SetUp() {
CommonRuntimeTest::SetUp();
{
ScopedObjectAccess soa(Thread::Current());
const InstructionSet instruction_set = kRuntimeISA;
// Take the default set of instruction features from the build.
instruction_set_features_ = InstructionSetFeatures::FromCppDefines();
runtime_->SetInstructionSet(instruction_set);
for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) {
Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i);
if (!runtime_->HasCalleeSaveMethod(type)) {
runtime_->SetCalleeSaveMethod(runtime_->CreateCalleeSaveMethod(), type);
}
}
timer_.reset(new CumulativeLogger("Compilation times"));
CreateCompilerDriver(compiler_kind_, instruction_set);
}
}
void CommonCompilerTest::CreateCompilerDriver(Compiler::Kind kind,
InstructionSet isa,
size_t number_of_threads) {
compiler_options_->boot_image_ = true;
compiler_driver_.reset(new CompilerDriver(compiler_options_.get(),
verification_results_.get(),
kind,
isa,
instruction_set_features_.get(),
GetImageClasses(),
GetCompiledClasses(),
GetCompiledMethods(),
number_of_threads,
/* dump_stats */ true,
/* dump_passes */ true,
timer_.get(),
/* swap_fd */ -1,
GetProfileCompilationInfo()));
// We typically don't generate an image in unit tests, disable this optimization by default.
compiler_driver_->SetSupportBootImageFixup(false);
}
void CommonCompilerTest::SetUpRuntimeOptions(RuntimeOptions* options) {
CommonRuntimeTest::SetUpRuntimeOptions(options);
compiler_options_.reset(new CompilerOptions);
verification_results_.reset(new VerificationResults(compiler_options_.get()));
callbacks_.reset(new QuickCompilerCallbacks(verification_results_.get(),
CompilerCallbacks::CallbackMode::kCompileApp));
}
Compiler::Kind CommonCompilerTest::GetCompilerKind() const {
return compiler_kind_;
}
void CommonCompilerTest::SetCompilerKind(Compiler::Kind compiler_kind) {
compiler_kind_ = compiler_kind;
}
InstructionSet CommonCompilerTest::GetInstructionSet() const {
DCHECK(compiler_driver_.get() != nullptr);
return compiler_driver_->GetInstructionSet();
}
void CommonCompilerTest::TearDown() {
timer_.reset();
compiler_driver_.reset();
callbacks_.reset();
verification_results_.reset();
compiler_options_.reset();
image_reservation_.reset();
CommonRuntimeTest::TearDown();
}
void CommonCompilerTest::CompileClass(mirror::ClassLoader* class_loader, const char* class_name) {
std::string class_descriptor(DotToDescriptor(class_name));
Thread* self = Thread::Current();
StackHandleScope<1> hs(self);
Handle<mirror::ClassLoader> loader(hs.NewHandle(class_loader));
mirror::Class* klass = class_linker_->FindClass(self, class_descriptor.c_str(), loader);
CHECK(klass != nullptr) << "Class not found " << class_name;
auto pointer_size = class_linker_->GetImagePointerSize();
for (auto& m : klass->GetMethods(pointer_size)) {
CompileMethod(&m);
}
}
void CommonCompilerTest::CompileMethod(ArtMethod* method) {
CHECK(method != nullptr);
TimingLogger timings("CommonTest::CompileMethod", false, false);
TimingLogger::ScopedTiming t(__FUNCTION__, &timings);
compiler_driver_->CompileOne(Thread::Current(), method, &timings);
TimingLogger::ScopedTiming t2("MakeExecutable", &timings);
MakeExecutable(method);
}
void CommonCompilerTest::CompileDirectMethod(Handle<mirror::ClassLoader> class_loader,
const char* class_name, const char* method_name,
const char* signature) {
std::string class_descriptor(DotToDescriptor(class_name));
Thread* self = Thread::Current();
mirror::Class* klass = class_linker_->FindClass(self, class_descriptor.c_str(), class_loader);
CHECK(klass != nullptr) << "Class not found " << class_name;
auto pointer_size = class_linker_->GetImagePointerSize();
ArtMethod* method = klass->FindDirectMethod(method_name, signature, pointer_size);
CHECK(method != nullptr) << "Direct method not found: "
<< class_name << "." << method_name << signature;
CompileMethod(method);
}
void CommonCompilerTest::CompileVirtualMethod(Handle<mirror::ClassLoader> class_loader,
const char* class_name, const char* method_name,
const char* signature) {
std::string class_descriptor(DotToDescriptor(class_name));
Thread* self = Thread::Current();
mirror::Class* klass = class_linker_->FindClass(self, class_descriptor.c_str(), class_loader);
CHECK(klass != nullptr) << "Class not found " << class_name;
auto pointer_size = class_linker_->GetImagePointerSize();
ArtMethod* method = klass->FindVirtualMethod(method_name, signature, pointer_size);
CHECK(method != nullptr) << "Virtual method not found: "
<< class_name << "." << method_name << signature;
CompileMethod(method);
}
void CommonCompilerTest::ReserveImageSpace() {
// Reserve where the image will be loaded up front so that other parts of test set up don't
// accidentally end up colliding with the fixed memory address when we need to load the image.
std::string error_msg;
MemMap::Init();
image_reservation_.reset(MemMap::MapAnonymous("image reservation",
reinterpret_cast<uint8_t*>(ART_BASE_ADDRESS),
(size_t)120 * 1024 * 1024, // 120MB
PROT_NONE,
false /* no need for 4gb flag with fixed mmap*/,
false /* not reusing existing reservation */,
&error_msg));
CHECK(image_reservation_.get() != nullptr) << error_msg;
}
void CommonCompilerTest::UnreserveImageSpace() {
image_reservation_.reset();
}
} // namespace art